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At least 415 records · Page 23Linked to original sources
PubMed1989

HLA-DR display by renal tubular epithelium and phenotype of infiltrate in interstitial nephritis.

Renal tubular display of HLA-DR was estimated semi-quantitatively in 28 biopsies from 27 patients with various forms of tubulointerstitial nephritis (10 following use of non-steroidal anti-inflammatory drugs) using a monoclonal anti-MHC class II non-polymorphic antibody (DK-22). Normal donor kidneys and biopsies from patients with minimal-change nephrotic syndrome were examined as controls. The phenotype of infiltrating cells was also studied quantitatively, using monoclonal antibodies on frozen biopsy tissue; the number of cells infiltrating the interstitium was counted per tubular cross-section. Display of HLA-DR was seen in up to 5% of control tubular cells, but up to 100% expressed HLA-DR in tubulointerstitial nephritis biopsies. There was a correlation between the expression of HLA-DR and the severity of both tubular atrophy and tubulointerstitial fibrosis judged semi-quantitatively by optical microscopy. In controls up to 50 leucocytes per tubular cross-section were evident, but in patients with tubulointerstitial nephritis up to 1500 were observed, approximately 50% being T-lymphocytes, the majority expressing the helper phenotype except in early, active drug-induced tubulointerstitial nephritis; the remainder were mostly monocytes. There were no qualitative differences between the different causes of tubulointerstitial nephritis. Tubular DR expression correlated with the number of DR-positive cells in the interstitium, but not with total leucocytes or T-lymphocytes. HLA-DR tubular expression was greater in the early stages than late stages of NSAID-induced tubulointerstitial nephritis, but this relationship was not present in the group as whole. HLA-DR expression by renal tubular epithelial cells may play a role in localising or amplifying tubular injury in tubulointerstitial nephritis.

Adolescent↗
PubMed2002

Sarcoidosis and interstitial nephritis in a child with acquired immunodeficiency syndrome: implications of immune reconstitution syndrome with an indinavir-based regimen.

A child with perinatally acquired AIDS and profound immunodeficiency was treated with zidovudine, lamivudine and indinavir and had excellent immunologic and virologic response. His subsequent clinical course was complicated by multisystem sarcoidosis characterized by granulomatous hepatitis, nephritis, duodenitis and a CD4+ lymphocytic alveolitis as part of the immune reconstitution syndrome.

Acquired Immunodeficiency Syndrome↗
PubMed1977

Focal glomerulonephritis and interstitial nephritis in methicillin-treated, heroin-related infective endocarditis.

A drug addict with staphylococcal endocarditis treated with methicillin, who developed massive proteinuria and acute nephritic syndrome is described. Discontinuation of methicillin therapy and appropriate antibiotic treatment of endocarditis led to clinical improvement, emphasizing the need to promptly discontinue potential nephrotoxic agents when abnormalities in renal function appear. The clinical course and results of renal biopsy studies suggest multiple causes of the renal lesions in this patient.

Adult↗
PubMed1979

Granulomatous interstitial nephritis: a complication of heroin abuse.

A 27-year-old man, a known heroin addict with previously diagnosed nephrotic syndrome, had a percutaneous renal biopsy for recurrent proteinuria. The biopsy revealed a glomerular lesion compatible with focal sclerosing hephropathy. The renal interstitium also demonstrated numerous active granulomas characterized by the presence of both multilamellated basophilic material and areas of unstained fibrillar material. These findings represent a previously undescribed complication of parenteral heroin abuse--renal granuloma formation.

Adult↗